2.3.17. --expt-relaxed-constexpr (-expt-relaxed-constexpr) Experimental flag: Allow host code to invoke __device__constexpr functions, and device code to invoke __host__constexpr functions. Note that r-nvcc/ index.html#options-for-altering-compiler-linker-behavior-expt-relaxed- constexpr Using constexpr 40 |constexpr void _add(std::size_t n, float const* x, float* y) { for (std::size_t i = 0; void add_gpu(int n, float const* x, float* y) { _add(n, x, y); } Using constexpr 41 |template constexpr void _add( std::size_t n, std::array const* x, std::array

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the slides ● constexpr or inline may be left off for slides ● using mp_units in all slides ● ni:: / tp:: for example code ○ unless defined on the slideConventions in the slides ● constexpr or inline may mp_units::si::unit_symbols; using namespace mp_units::international::unit_symbols; constexpr quantity v1 = 110 * (km / h); // 110 km/h constexpr quantity v2 = 70 * mph; // 70 mi/hhello, units auto v3 = avg_speed(220 v4 = avg_speed(isq::distance(140. * mi), 2 * h); // 70.0 mi/hhello, units constexpr auto avg_speed(auto d, auto t) { return d / t; } auto v3 = avg_speed(220. * isq::distance[km]

}; all_pairs_view() = default; constexpr all_pairs_view(TBase vw); [[nodiscard]] constexpr iterator begin() const; [[nodiscard]] constexpr iterator end() const; }; 1 2 3 4 5 6 7 8 }; all_pairs_view() = default; constexpr all_pairs_view(TBase vw); [[nodiscard]] constexpr iterator begin() const; [[nodiscard]] constexpr iterator end() const; }; 1 2 3 4 5 6 7 8 all_pairs_view() = default; 10 constexpr all_pairs_view(TBase vw); 11 12 [[nodiscard]] constexpr iterator begin() const; 13 [[nodiscard]] constexpr iterator end() const; 14 }; 15 25template

extents.cons], Constructors and assignment 7 constexpr extents () noexcept = default; 8 constexpr extents(const extents &) noexcept = default; 9 constexpr extents& operator =( const extents &) noexcept > 12 constexpr extents(const extents < OtherExtents ... >&) noexcept; 13 template 14 constexpr extents(IndexType ...) noexcept; 15 template 16 constexpr extents(const OtherExtents > 18 constexpr extents& operator =( const extents < OtherExtents ... >&) noexcept; 19 20 // [mdspan.extents.obs], Observers of the domain multidimensional index space 21 static constexpr size_t rank

func(cats);Example – Compile Time Parsers std::vector cats = { /*...*/ }; constexpr auto parser = create_parser(); constexpr auto func = parser( "SELECT id, name WHERE age > 42"); auto result = func(cats);Example func(cats);Example – Compile Time Parsers template constexpr auto operator""_FROM() { constexpr auto parser = create_parser(); return parser(str); } /*...*/ std::vector cats < sequence, prod_exp>, prod_exp, eval_plus>{}; /*...*/ constexpr auto result = apply_wrap1< calculator_parser, BOOST_METAPARSE_STRING("2 * 3 + 4")>::type::value;Boost

None 194 C++ modules 20 None 17 None None import std; 23 None 18 None None Static constexpr variables in constexpr functions 23 13 17 None None Explicit this parameter 23 14 18 None None CppCon 2024: None 194 C++ modules 20 None 17 None None import std; 23 None 18 None None Static constexpr variables in constexpr functions 23 13 17 None None Explicit this parameter 23 14 18 None None • Available time_to_goal_s); TTG: 2.68432 s constexpr auto M_PER_KM = 1000.; constexpr auto CM_PER_MI = 2.54 * 12. * 5280; constexpr auto M_PER_MI = CM_PER_MI / 100.; constexpr auto S_PER_H = 3600.; constexpr auto MPS_PER_KMPH

Testing Variable Testing Type 15x is Type Actual type Expected template< typename C, typename X > constexpr auto is( X const& ) -> bool; is(x); 16x is Type 17x is Type 18x is Type 19x is Type template constexpr bool is( auto const& x ) template constexpr bool is( X const& x, C const& value ) inline constexpr bool is( auto const& x, auto const& const& value ) 38x is value g++-10 Clang-12 MSVC v19.29 inline constexpr bool is( auto const& x, auto const& value ) { if constexpr (requires{ bool{x == value}; }) { return x == value; } return false;

@param d distance in metres /// @param t time in seconds /// @return speed in metres per second /// constexpr double avg_speed(double d, double t) { return d / t; } CppCon 2020 | A Physical Units Library si/velocity.hpp> #include namespace bu = boost::units; constexpr bu::quantity avg_speed(bu::quantity d, si/velocity.hpp> #include namespace bu = boost::units; constexpr bu::quantity avg_speed(bu::quantity d,

ButtonProperties { struct Text { using property_type = std::string; static constexpr auto name = "Text"; static constexpr auto defaultValue = ""; }; using List = PropertyList; } class Button ButtonProperties { struct Text { using property_type = std::string; static constexpr auto name = "Text"; static constexpr auto defaultValue = ""; }; using List = PropertyList; } class Button ButtonProperties { struct Text { using property_type = std::string; static constexpr auto name = "Text"; static constexpr auto defaultValue = ""; }; using List = PropertyList; } class Button

Library (STL) [Examples] Standard Template Library (STL) template template constexpr variant::variant(T&& t) : index{find_index} // Powered by TMP , // ... { } 5 template template constexpr variant::variant(T&& t) : index{find_index} // Powered by TMP , // ... { } template constexpr auto get(tuple&&) template template constexpr variant::variant(T&& t) : index{find_index} // Powered by TMP , // ... { } template constexpr auto get(tuple&&)